Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: A corrida Eyserweg era qual corrida #?
 ###Tabelas: CREATE TABLE list_of_rmsp_company_vessels (list_of_rmsp_company_vessels_id AUTO_INCREMENT PRIMARY KEY, Ship VARCHAR, Date Commissioned INT, Gross Tonnage INT, Propulsion VARCHAR, Material VARCHAR) CREATE TABLE 1938_ladder (1938_ladder_id AUTO_INCREMENT PRIMARY KEY, Club VARCHAR, Wins INT, Losses INT, Draws INT, Against INT) CREATE TABLE course (course_id AUTO_INCREMENT PRIMARY KEY, Number INT, Name VARCHAR, Kilometer INT, Location VARCHAR, Length (in m) INT, Average climb (%) INT) CREATE TABLE africa (africa_id AUTO_INCREMENT PRIMARY KEY, Rank INT, Country VARCHAR, International tourist arrivals (2011) VARCHAR, International tourist arrivals (2010) VARCHAR, Change (2010 to 2011) VARCHAR, Change (2009 to 2010) VARCHAR) CREATE TABLE expansion_draft_selections (expansion_draft_selections_id AUTO_INCREMENT PRIMARY KEY, Pick INT, Player VARCHAR, Nationality VARCHAR, New WNBA Team VARCHAR, Former WNBA Team VARCHAR, College/Country/Team VARCHAR)  
SELECT MAX Number FROM course WHERE Name = Eyserweg